Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 994

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-994 A Portland MI MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      
517-994 0 Portland MI   046L CLEAR RATE COMMUNICATIONS, LLC 346   2013-03-07   
517-994 1 Portland MI   543C ONVOY, LLCV - MI 346   2013-01-30   
517-994 2 Portland MI   3535 ACD TELECOM, INC. - MI 346      
517-994 3 Portland MI   3535 ACD TELECOM, INC. - MI 346      
517-994 4 Portland MI   3535 ACD TELECOM, INC. - MI 346      
517-994 5 Portland MI   543C ONVOY, LLCV - MI 346   2012-05-28   
517-994 6 Portland MI   961J WOW! INTERNET, CABLE AND PHONE 346   2012-05-20   
517-994 7 Portland MI   3535 ACD TELECOM, INC. - MI 346      
517-994 8 Portland MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2009-09-26   
517-994 9 Portland MI   3535 ACD TELECOM, INC. - MI 346      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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